Throttle-rod stuffing box



L. H. ROGERS THROTTLE ROD STUFFING Box Fild July 16 1924 Oct. Z7, 1925- 5 1 5 Patented Oct. 27, 1925.

A um'rsn STATES LEE n. ROGERS, or xansas'crrr, mrssomu, ASSIGNOR To; ensTIN-BAcon MANU- FAOTURING COMPANY, OF KANSAS CITY, MISSOURI, A CORPORATION OF MISSOURI.

THROTTLE-ROD STUFFING BOX.

Application filed m 16,

To all whom it may concern: I

Be it known that I, LEE H. Rooms, a citizen of the United States, residing at Kansas City, in the county of J ackson and State of Missouri, have invented certain new and useful Improvements in Throttle-Rod Stuffing Boxes; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accom anying drawings, and to the figures of re erence marked thereon, which form a part of this specification. I

This invention relates to a throttle rod stufling box particularly adapted for use in connection with locomotive boilers.

' Prior to my invention stufling boxes have been in common use conforming generally to the construction illustrated in the patent to Daley and Long, No. 934,289, of September 14, 1909. While the stufiing box so constructed admirably served its purpose as a stuffing box, it was open to the serious objection that the pin 11 illustrated in said patent was frequently sheared oil so there was no assurance that the ports 5 and 9 were in register, consequently'difiiculty frequently arose in packing the, stuffing box. I have provided a stuflin box which eliminates this objection and wh1ch in actual practice costs less to manufacture than the stuffing boxes heretofore used. 4 I

I have also provided means for quick easy assembly and disassociation of parts and the invention consists in certain novel parts and combinations of parts, all of which will be specifically referred to hereinafter, reference being bad to the accompanying drawings, in which- Fig. 1 is a vertical, lon itudinal, sectional view through a stufiing ox constructed in accordance with my invention.

Fig. 2 is an endelevational view of the same.

Fig. 3 is a perspective view of the stud- I ing bozgandig. 4 is a detailed perspective view of the valve for controllm communication between the storage cham er and the stuffing box chamber.

he boiler head 1 may be part of a conventional steam boiler provided with an ,0 ening 2 to receivethe rounded. end 3'of' 't e stufiing box 4, the end 3 being tightly 1924. Serial No. 726,298.

held against the edges of the opening 2 by the stud bolts 5 which pass through the' flange 6 of the stuffing box 4.

' The stuffing box has a cylindrical interior with a restricted. throat 7 adjacent to the boiler. restricted end 8 of a gland or throat ring 9 which fits in the stuifing box and through which projects the throttle Valve stem 10. The throttle valve stem 10 may be 0 erated by any suitable means and it may e connected tothe throttle in any appropriate manner, these connections constituting no The storage chamber may be cast integral with the stufiing box and at its upper end it is provided with an internally threaded portion 15 to receive the threads 16 of a ram in the form of a compresser screw 17 which may put the packing under compression to force it into the packing chamber 18 of the stuffing box 4.

The cylindrical valve is provided with ashoulder 19 against which may abut a plate or ring 20 fastened to the stuffing box 4 by the bolts 21 and 22. The ring or plate 20 is The restricted throat receives the provided with indicia 23 to indicate when 1 the charging chamber; and the port 0 ening 12 are in register and additional indicia 24 to indicate when they are out of register, the valve being adapted to be turned by any appro riate crank or wrench which may enage t e polygonal end 25 of the valve and reference to Figs. 1, 2 and 4, it will be 0 served that there is an indicator or stopmw pin 26 on the valve which when it 1s adja- 10o cent to the indicia 23 will indicate that the storage chamber may communicate with. the packing chamber and which when it is adjacent to the indicia 24.- will indicate that com munication between the storage chamber and the acking chamber has been out 01f.

' en the parts are assembled, with the ring plate 20 holding the valve 11 against longitudinal movement but permitting it to rotate, packing. material.- 26 may be introless capacity than the packing'chamber, the

a screw or ram will be removed and additional packing put in, the ram will beturned to force the packing intothe packing chamber until the packing chamber becomes entirely full and adequately packed, then the valve will be turned so as to close on. communication between the packing chamber and the storage chamber. 1 The packing will now be complete but Whenever the device needs repacking, it will be only necessary to turn the valve to the position shown in Fig. 1 and complete the repacking as above described.

Of course initially some packing may be put into the packing chamber before the valve is introduced and secured, but after that all of the packing will generally be fed into the packing chamber by means of the ram and I therefore consider it not inapt to designate the storage chamber as a charging chamber and the ram as a charging device.

What I claim and desire to secure by Letters-Patent is 1. A stufling box comprising a housing open at both ends and having a packing feed opening in its side wall, a gland closing one end of the housing, a combination gland and cylinder valve member closing the opposite end of the housing and having an opening in its side wall registerable with the packing feed opening, and a keeper retaining the combination gland and cylinder valve member in the housing.

2. A stuffing box having a longitudinal chamber through which a throttle valve stem may pass and provided with an inlet opening in its wall at right angles to the axis of the stuffing box, a throat ring at one end of the chamber having an opening for tightly fitting the throttle valve stem, a rotary valve Within the stuffing box chamber having an opening through which the throttle valve stem may pass and provided with an opening in its wall adapted to be brought into and out of register with the opening and the stufiing box, and means whereby the valve may be rotated. 1

In testimony whereof I afiix my signature.

LEE H. ROGERS. 

